KR101353308B1 - 대칭 타이밍 기반 서보 버스트의 동기화 - Google Patents

대칭 타이밍 기반 서보 버스트의 동기화 Download PDF

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Publication number
KR101353308B1
KR101353308B1 KR1020127019281A KR20127019281A KR101353308B1 KR 101353308 B1 KR101353308 B1 KR 101353308B1 KR 1020127019281 A KR1020127019281 A KR 1020127019281A KR 20127019281 A KR20127019281 A KR 20127019281A KR 101353308 B1 KR101353308 B1 KR 101353308B1
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KR
South Korea
Prior art keywords
servo
burst
stripes
stripe
shifted
Prior art date
Application number
KR1020127019281A
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English (en)
Korean (ko)
Other versions
KR20120123359A (ko
Inventor
지오바니 체루비니
젠스 젤리토
마크 알프레드 란츠
로버트 앨런 허친스
Original Assignee
인터내셔널 비지네스 머신즈 코포레이션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 인터내셔널 비지네스 머신즈 코포레이션 filed Critical 인터내셔널 비지네스 머신즈 코포레이션
Publication of KR20120123359A publication Critical patent/KR20120123359A/ko
Application granted granted Critical
Publication of KR101353308B1 publication Critical patent/KR101353308B1/ko

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
KR1020127019281A 2010-02-24 2011-01-19 대칭 타이밍 기반 서보 버스트의 동기화 KR101353308B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/712,039 2010-02-24
US12/712,039 US8054568B2 (en) 2010-02-24 2010-02-24 Synchronization of symmetric timing based servo bursts
PCT/EP2011/050674 WO2011104050A2 (en) 2010-02-24 2011-01-19 Synchronization of symmetric timing based servo bursts

Publications (2)

Publication Number Publication Date
KR20120123359A KR20120123359A (ko) 2012-11-08
KR101353308B1 true KR101353308B1 (ko) 2014-01-23

Family

ID=44476294

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020127019281A KR101353308B1 (ko) 2010-02-24 2011-01-19 대칭 타이밍 기반 서보 버스트의 동기화

Country Status (7)

Country Link
US (1) US8054568B2 (zh)
EP (1) EP2539894B1 (zh)
JP (1) JP5651197B2 (zh)
KR (1) KR101353308B1 (zh)
CN (1) CN102770914B (zh)
CA (1) CA2780235C (zh)
WO (1) WO2011104050A2 (zh)

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GB2518677A (en) 2013-09-30 2015-04-01 Ibm Tape storage medium
JP6902497B2 (ja) 2018-05-28 2021-07-14 富士フイルム株式会社 磁気テープ、磁気テープの製造方法、磁気テープの製造装置、及び記録再生システム
US10832715B1 (en) * 2019-10-29 2020-11-10 International Business Machines Corporation Averaged slope timing-based-servo tape-creep detection
US11011198B1 (en) 2019-10-29 2021-05-18 International Business Machines Corporation Tape-creep detection via frequency domain data
US10930309B1 (en) 2019-10-29 2021-02-23 International Business Machines Corporation Tape-creep detection via trajectory and distortion angles
JPWO2021095720A1 (zh) * 2019-11-12 2021-05-20
US11373682B2 (en) * 2020-08-27 2022-06-28 Western Digital Technologies, Inc. Data storage device reading data from magnetic tape in forward and reverse direction
US11488625B2 (en) 2020-10-01 2022-11-01 Western Digital Technologies, Inc. Data storage device demodulating servo stripes using matched filter
US11488626B2 (en) 2020-10-01 2022-11-01 Western Digital Technologies, Inc. Data storage device demodulating servo stripes using matched filter
US11295773B1 (en) 2020-10-01 2022-04-05 Western Digital Technologies, Inc. Data storage device demodulating digital data based on number of servo stripes in servo frame
US11386928B2 (en) 2020-10-01 2022-07-12 Western Digital Technologies, Inc. Data storage device demodulating servo stripes using matched filter
CN115296784B (zh) * 2022-08-10 2023-10-20 横川机器人（深圳）有限公司 伺服驱动器低延时同步方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359539B1 (ko) 1999-08-09 2002-11-04 인터내셔널 비지네스 머신즈 코포레이션 매체 상에 사전기록된 타이밍 기반 서보 패턴으로 변조된데이터를 검출하는 검출기 및 그 검출방법
US20050057838A1 (en) 2003-09-11 2005-03-17 Fuji Photo Film Co., Ltd. Magnetic tape and maufacturing method thereof, and servo writer and servo write method
US20050122615A1 (en) 2003-12-01 2005-06-09 Fuji Photo Film Co., Ltd. Magnetic tape cartridge, servo writer, magnetic tape drive and method for reading servo signal

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US4105863A (en) 1976-12-20 1978-08-08 Bell Telephone Laboratories, Incorporated Arrangement for combining data symbols in accordance with a predetermined weighting function
US5448430A (en) 1993-08-05 1995-09-05 International Business Machines Corporation Track following servo demodulation
US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
US6049438A (en) 1997-03-07 2000-04-11 International Business Machines Corporation Method and apparatus for encoding digital servo information in a servo burst
US5930065A (en) 1997-05-16 1999-07-27 International Business Machines Corporation Timing based servo longitudinal addressing
US6542325B1 (en) 1999-03-10 2003-04-01 Imation Corp. Time-based servo for magnetic storage media
US6278571B1 (en) * 1999-05-19 2001-08-21 International Business Machines Corporation Adaptive servo gap detection for timing based servo
US6580581B1 (en) 2000-08-16 2003-06-17 International Business Machines Corporation Recovery of lateral position of a servo system with respect to longitudinal servo bands of a magnetic tape
US6879457B2 (en) 2002-02-13 2005-04-12 International Business Machines Corporation Timing based servo with fixed distances between transitions
US7193800B2 (en) 2004-05-06 2007-03-20 Hitachi Global Storage Technologies Netherlands B.V. Data recording medium with servo pattern having pseudo-noise sequences
US7280294B2 (en) * 2004-11-30 2007-10-09 International Business Machines Corporation Tri-state servowriter driver with slow return to zero
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JP4918407B2 (ja) * 2007-05-21 2012-04-18 日立マクセル株式会社 サーボ信号記録装置
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US7903368B2 (en) 2008-02-01 2011-03-08 International Business Machines Corporation Tape cartridge having tape media with longitudinally shifted servo pattern for increased sampling rate
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US20100079890A1 (en) * 2008-09-26 2010-04-01 Brummet Robert Allan Method and apparatus for encoding positioning information on a magnetic tape media

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359539B1 (ko) 1999-08-09 2002-11-04 인터내셔널 비지네스 머신즈 코포레이션 매체 상에 사전기록된 타이밍 기반 서보 패턴으로 변조된데이터를 검출하는 검출기 및 그 검출방법
US20050057838A1 (en) 2003-09-11 2005-03-17 Fuji Photo Film Co., Ltd. Magnetic tape and maufacturing method thereof, and servo writer and servo write method
US20050122615A1 (en) 2003-12-01 2005-06-09 Fuji Photo Film Co., Ltd. Magnetic tape cartridge, servo writer, magnetic tape drive and method for reading servo signal

Also Published As

Publication number Publication date
EP2539894B1 (en) 2013-04-17
CA2780235C (en) 2018-05-29
CN102770914B (zh) 2015-07-29
JP5651197B2 (ja) 2015-01-07
JP2013520762A (ja) 2013-06-06
WO2011104050A3 (en) 2012-04-19
EP2539894A2 (en) 2013-01-02
US20110205657A1 (en) 2011-08-25
CN102770914A (zh) 2012-11-07
US8054568B2 (en) 2011-11-08
KR20120123359A (ko) 2012-11-08
CA2780235A1 (en) 2011-09-01
WO2011104050A2 (en) 2011-09-01

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